Google Chrome browser statistics wrong

[mpbraendle]

Due to a faulty match procedure in Browsers.pm, accesses by Google Chrome browser are (practically) not counted, but are attributed to Apple Safari (see http://www.eprints.org/tech.php/20781.html )

There are two possibilities to remedy this:

• either replace "Apple Safari" by "Safari" in line 20
• or change line 54 as follows:

  foreach( keys %$BROWSERS_SIGNATURES )

   foreach( sort keys %$BROWSERS_SIGNATURES )
  

The statistics must be recalculated from scratch.

[jesusbagpuss]

See also #87.
The sort fix only works because 'Chrome' is alphabetically before Safari.

Might be worth looking at e.g. https://github.com/ua-parser/ for a more 'proper' solution?
Although I'm not sure whether this overhead is needed (it detects OS, Browser, versions - but thiese could be interesting when looking at stats too?